Fire-grate attachment.



PATENTED APR. 12, 1904.

M. A. STEWART.

' FIRE GRATE ATTACHMENT.

APPLICATION FILED JAN. 15, 1903.

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FlRE-GRATE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 757,067, dated April12, 1904.

Application flied January 15, 1908. Serial No. 139,118. (No model.)

To a, whom it may concern:

Be' it known that I, MATTHEW A. STEWART, a citizen of the United States,and a resident of New York city, borough of Manhattan, New York, haveinvented certain new and useful Improvements in Fire-Grate Attachments,of which the following is a specification.

In many firegrates now in use the ashes pack more or less tightly in thelower back corner of the grate and prevent. free circulation of air frombelow at the back through the live fire, thereby making the lower backportion of the grate at times not only useless for. heating purposes,but a detriment to the proper draft of the fire in the grate. The objectof my invention is to provide an attachment or device adapted to beremovably placed at the lower back corner of a grate of an openfireplace to obviate and prevent the packing of the ashes at the backcorner of the grate, as above indicated, and also to assure freecirculation of air through the live fire upwardly from the lower backcorner of the grate, provision in such attachment being made forregulating the draft through it upwardly'toward the fire.

To these ends my invention comprises a frame adapted to fit at the backof the grate and provided with a front upwardly and rearwardly inclinedgrating or grid adapted to permit the circulation of air therethrough tothe coal lying in front thereof and a regulator carried by saidattachment to control the passage of air therethrough after the mannerof a damper.

The invention also contemplates the novel details of improvement thatwill be more fully hereinafter set forth, and then pointed out in theclaims.

Reference is to be had to the accompanying drawings, forming parthereof, wherein- Figure 1 is a perspective view of a fireplacegrateprovided with my improvements. Fig. 2 is a vertical section thereof onthe line 2 2 in Fig. 1. Fig. 3 is a detail face view of my improvedgrate attachment, and Fig. 4 is a section thereof on the line f at inFig. 3.

Similar numerals of reference indicate corresponding parts in theseveral views.

well-known open fireplace, and at 3 is indicated generally my improvedattachment for the grate.

The attachment, as shown in the drawings, compriseshorizontally-disposed bars 4 5, connected together at their ends bybracket-pieces 6, having baseportions 6" and upright portions 6, whichpreferably extend at a right angle to each other, or nearly so, so thatthe parts 6 may rest upon the bottom bars of the grate and the parts 6will rise along the back of the fireplace, as indicated in Fig. 2.Between the bars 1 5 extends a grating 7, pref erably in the form ofparallel bars located at suitable distances apart to provide air-spaces7, the arrangement being suchthat the bars 7 extend in an upward andrearward direction or incline rearwardly from the front bar 5 to theupper bar 4, the attachment in end view appearing substantiallytriangular, the base of the triangle being at the bottom, the verticalor upright side beingat the back, and theinolined grate-like side beingat the front when the attachment is placed within the grate 2. (See Fig.2.) The bars 4 5 7 and members 6 of the attachment, as above described,may be of separate pieces of metal riveted or otherwise secured togetheror may be made of cast bars 7 to wholly or partially close such openingsor leave them entirely open.

To conveniently support damper 8 in conis connected with the attachmentso as to slide with respect thereto.

To operate the damper 8, I have shown a lever or handle 10, pivotallyconnected with the attachment, as upon a pivot 11, extending from bar4:, the lower end of lever or handle 10 being connected with the damper8, as by a yoke or extension 12, secured to certain of the bars 8, as byrivets, and projecting rearwardly, the handle 10 being pivotallyconnected at 10 with the yoke or extension 12, sufiicient loosenessbeing provided at the pivotal point 10 to permit proper relativemovement of the parts. By this means by rocking the handle 10 the damper8 may be adjusted with respect to the openings between the bars 7 toregulatethedraftbetweensaidbars. The attachment above described is to beplaced within the grate at the lower back corner of the same, so thatthe coals for afire will rest upon the inclined bars 7, whereby an openspace at the lower back portion of the grate is provided which permitsair to circulate upwardly and through the coals from the rear portion ofthe latter in addition to the ordinary draft through the front portionof the grate. The result of this arrangement is to prevent the packingof ashes at the lower back portion'of the grate and consequent stoppageof or interference with the draft to the fire at the back portion of thegrate, whereby the fire can burn more freely, and also by reason of theair entering the fire from behind the heat is driven outward into theroom to a greater extent than where a grate is used without suchattachment, the advantages of which will be obvious. By suitablymanipulating the damper 8 the draft through the back of the fire can beregulated as desired.

The details of construction may be varied without departing from thespirit of my invention.

Having now described my invention, what I claim is 1. An attachment forfire-grates compriswaps"? ing a series of bars having spaces betweenthem, cross-bars connected to the ends of the first-named bars,standards secured to said bars for supporting the first-named bars in anupwardly and rearwardly inclined position within an open fire-grate, adamper comprising a series of bars connected together and having spacesbetween them, guides carried by the cross-bars for supporting saiddamper to slide with respect to the first-named bars, and means foroperating said damper, substantially as described.

2. In a grate attachment of the character described, the combination ofa pair of bars provided with opposed grooved portions, parallel barsconnected with said bars to have spaces between them, standardsconnected with said first-named bars and arranged to support the saidparallel bars in an upwardly and rearwardly inclined position, a damperprovided with openings and adapted to be guided by said grooved bars,and means for operating said damper, substantially as described.

3. In a grate attachment of the character described, the combination ofupwardly and rearwardly inclined bars having spaces between them,horizontally-disposed bars connected with the first-named bars, meansfor supporting said bars, a damper to coact with said inclined bars toregulate the draft between them, a handle pivotally connected with oneof the horizontal bars, and an extension from said damper pivotallyconnected with said handle, substantially as described.

MATTHEW A. STEWART.

Witnesses:

H. D. BRADBURY, T. F. BOURNE.

